Knife sharpener w. grades

"Even high-quality knives need to be sharpened regularly. Sharpening a blade requires a certain level of skill, and knife sharpeners are a great option for inexperienced users. WMF knife sharpeners are excellent. They feature guides that prevent the blade from slipping between two ceramic plates - some models have adjustable settings - ensuring precise sharpening. WMF's sturdy knife sharpeners and non-slip bottom coating guarantee high-level safety. WMF knife sharpeners are available in various models with different functions tailored to individual needs. 2 slots for coarse and fine sharpening. Durable ceramic plates."